CN207098789U

CN207098789U - Rotor, motor and compressor

Info

Publication number: CN207098789U
Application number: CN201721112608.9U
Authority: CN
Inventors: 徐飞; 乔正忠; 邱小华
Original assignee: Guangdong Meizhi Compressor Co Ltd
Current assignee: Guangdong Meizhi Compressor Co Ltd
Priority date: 2017-08-31
Filing date: 2017-08-31
Publication date: 2018-03-13
Anticipated expiration: 2027-08-31

Abstract

The utility model discloses a kind of rotor, motor and compressor, rotor includes rotor core and multiple magnetic parts, and rotor core has multiple slots that rotor inner hole and surrounding rotor endoporus are set；Magnetic part is corresponding with the quantity of slot, one magnetic part of insertion in each slot；Rotor core is provided with least two axially extending holes along rotor inner hole in each slot away from the side in rotor inner hole direction, multiple distribution of pores are in both sides of the slot along rotor inner hole circumference, also, multiple holes connect towards the side of slot with slot.The utility model improves the structure of rotor, reduces the caloric value of motor coil group.

Description

Rotor, motor and compressor

Technical field

It the utility model is related to Compressor Technology field, more particularly to a kind of rotor, motor and compressor.

Background technology

In the prior art, connected between multiple coil groups of motor stator using end to end mode, motor can be caused In the course of the work, triple-frequency harmonics back-emf is produced between its multiple coil group, the triple-frequency harmonics back-emf can be between coil group Triple-frequency harmonics circulation is formed, so that winding seriously generates heat, has a strong impact on motor performance.

Utility model content

Main purpose of the present utility model is to provide a kind of rotor, it is intended to reduces between motor coil group three times Harmonic circulating current, the problem of to avoid coil group caloric value excessive.

To achieve the above object, the utility model proposes a kind of rotor, the rotor to include：

Rotor core, there is rotor inner hole and the multiple slots set around the rotor inner hole；

Magnetic part, each slot in insertion one magnetic part corresponding with the quantity of the slot；

The rotor core is provided with along the rotor in each slot away from the side in the rotor inner hole direction At least two axially extending holes of endoporus, multiple distribution of pores in the slot along the rotor inner hole it is circumferential two Side, also, multiple holes connect towards the side of the slot with the slot.

Circumferential both sides of the slot along the rotor inner hole are preferably located at, and at a distance of the two nearest holes Circumference of the inwall along rotor core both ends close to each other between corresponding central angle be θ₁；Positioned at the slot edge The circumferential both sides of the rotor inner hole, and circumference of the inwall of two holes of lie farthest away along the rotor core is mutually Corresponding central angle is θ between the both ends deviated from₂,Wherein, P is the rotor number of poles Half.

Preferably, the cross section of the hole is arched, isosceles triangle, rectangle or isosceles trapezoid are set.

Preferably, the inwall of the hole includes the arc section along the circumferentially extending of the rotor core, and positioned at institute Two first paragraphs of the arc section along the circumferential both ends of the rotor core are stated, two first paragraphs turn with the slot away from described The side wall in sub- endoporus direction is vertical；

Or two the first paragraph along the radial direction of the rotor inner hole from the arc section towards the rotor inner hole direction Extension.

Preferably, the central angle θ₁Angular bisector and the central angle θ₂Angular bisector it is misaligned.

Preferably, the axial both ends that axially penetrate through the rotor core of the hole along the rotor core.

Preferably, the quantity of the hole is two, and positioned at the hole of the direction of rotation upstream of the rotor core The cross-sectional area of gap, more than the cross-sectional area of the hole positioned at the direction of rotation downstream of the rotor core.

Preferably, the quantity of the hole is three, and two holes in three holes are disposed adjacent, and It is arranged at intervals with hole another described.

The utility model also proposes a kind of motor, including motor stator and rotor as described above, the motor Rotor includes：

Preferably, the motor stator includes：

Stator core, the stator core have it is multiple along its circumferentially spaced stator tooth, it is two neighboring described Stator tooth limits stator groove gap；

Multiple coil groups, each coil group include multiple coils being wound in the stator tooth, each described Coil group has even number joint；

Two motor down-lead groups, each motor down-lead group have the more joints and electricity for being used to connect the coil group The motor down-lead of machine control circuit, the total radical of motor down-lead and the quantity phase of the coil group in each motor down-lead group It is connected Deng, the every motor down-lead with an end of incoming cables of coil group or a leading-out terminal.

Preferably, the motor stator also includes multiple plug connectors, and the more motors in each motor down-lead group draw Line passes through at least one plug connector and circuit for controlling motor grafting.

Preferably, the quantity of the plug connector is two, and the more motor down-leads in each motor down-lead group pass through One plug connector and circuit for controlling motor grafting.

The utility model also proposes a kind of compressor, including motor as described above, is provided with least on the compressor Six are used for the binding posts that are connected with the motor down-lead, and the structure of motor is with reference to above-mentioned, and here is omitted.

The utility model is set along rotor by each slot in rotor core away from the side in rotor inner hole direction At least two axially extending holes in hole, and make multiple distribution of pores in the slot along the circumferential both sides of rotor inner hole, from And the leakage field for the magnetic part being inserted in slot can be reduced, and then reduce coil group between triple-frequency harmonics circulation, reduce around The caloric value of group.

Brief description of the drawings

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work Under, other accompanying drawings can also be obtained according to the structure shown in these accompanying drawings.

Fig. 1 is the structural representation of the embodiment of the utility model motor one；

Fig. 2 is the structural representation of the utility model rotor core first embodiment；

Fig. 3 is the structural representation of the utility model rotor core second embodiment；

Fig. 4 is the structural representation of the utility model rotor core 3rd embodiment；

Fig. 5 is the structural representation of the utility model rotor core fourth embodiment；

Fig. 6 is the structural representation of the embodiment of the utility model rotor core the 5th；

Fig. 7 is the structural representation of the utility model rotor core sixth embodiment；

Fig. 8 is the structural representation of the embodiment of the utility model rotor core the 7th；

Fig. 9 is the structural representation of the embodiment of the utility model rotor core the 8th；

Figure 10 is the structural representation of the embodiment of the utility model rotor core the 9th；

Figure 11 is counter potential waveform ratio in the counter potential waveform in the utility model coil group and the coil group of prior art Compared with schematic diagram；

Figure 12 is in opposite potential fundamental wave in the utility model coil group and the coil group of 3 subharmonic accountings and prior art The comparison schematic diagram of opposite potential fundamental wave and 3 subharmonic accountings；

Figure 13 is the structural representation of the embodiment of the utility model compressor one.

Drawing reference numeral explanation：

Label	Title	Label	Title
				10	Motor stator	202	Magnetic part
20	Rotor	203	Slot
				30	Shell	203a	Side wall
31	Accommodating chamber	204	Hole
				40	Bent axle	204a	Hole
50	Cylinder	204b	Hole
				51	Compression chamber	204c	Hole
60	Piston	204d	Hole
				70	Base bearing	204d1	Arc section
80	Supplementary bearing	204d2	First paragraph
				101	Stator core	204e	Hole
101a	Stator groove gap	204e1	Arc section
				101b	Stator tooth	204e2	Second segment
102	Coil	204f	Hole
				102a	Lead-in line joint	204f1	It is raised
102b	Outlet joint	204g	Hole
				103	Motor down-lead group	204g1	Groove
103a	Motor down-lead	204h	Hole
				104	Plug connector	205	Inwall
201	Rotor core	205a	Inwall

Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only part of the embodiment of the present utility model, rather than all Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not paying creative work premise Lower obtained every other embodiment, belong to the scope of the utility model protection.

It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment It is only used for explaining relative position relation under a certain particular pose (as shown in drawings) between each part, motion conditions etc., such as When the fruit particular pose changes, then directionality instruction also correspondingly changes therewith.

In addition, the description for being related to " first ", " second " etc. in the utility model is only used for describing purpose, without being understood that To indicate or implying its relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", At least one this feature can be expressed or be implicitly included to the feature of " second ".In addition, the technical side between each embodiment Case can be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical scheme Occur conflicting or will be understood that the combination of this technical scheme is not present when can not realize, also not in the requires of the utility model Protection domain within.

The utility model proposes a kind of compressor, the compressor includes motor.

Reference picture 1 and Fig. 2, the motor include motor stator 10 and rotor 20.Rotor 20 includes rotor core 201 and multiple magnetic parts 202, what rotor core 201 had that rotor inner hole 201a and surrounding rotor endoporus 201a sets multiple inserts Groove 203；The quantity of magnetic part 202 on rotor core 201 is corresponding with the quantity of slot 203, and one magnetic of insertion in each slot 203 Property part 202.

Wherein, rotor core 201 is provided with along rotor in each slot 203 away from the side in rotor inner hole 201a directions Hole 201a at least two axially extending holes 204, it is circumferential along rotor inner hole 201a that multiple holes 204 are distributed in slot 203 Both sides, also, multiple holes 204 connect towards the side of slot 203 with slot 203.

It is understood that the side by deviating from rotor inner hole 201a directions in each slot 203 of rotor core 201 Axially extending multiple holes 204 along rotor inner hole 201a are provided with, multiple holes 204 is distributed in slot 203 along rotor Both sides circumferential endoporus 201a, and multiple holes 204 is connected towards the side of slot 203 with slot 203, it can reduce slotting Enter the leakage field of the magnetic part 202 in multiple slots 203, and then reduce triple-frequency harmonics back-emf, reduce the caloric value of winding.

In the present embodiment, multiple holes 204 can be all along the axle for axially penetrating through rotor core 201 of rotor core 201 To both ends, can also the axial both ends that axially penetrate through rotor core 201 of the part hole 204 along rotor core 201, or, it is more Individual hole 204 is not along the axial both ends for axially penetrating through rotor core 201 of rotor core 201.Certainly, when multiple holes 204 Along rotor core 201 when axially penetrating through rotor core 201, the processing of rotor core 201 is more convenient.

As shown in Fig. 2, Figure 10, positioned at slot 203 along both sides circumferential rotor inner hole 201a, and at a distance of two nearest holes Circumference of the inwall along rotor core 201 both ends close to each other between corresponding central angle be θ₁, positioned at slot 203 along rotor Endoporus 201a circumferential both sides, and the both ends that circumference of the inwall of two holes of lie farthest away along rotor core 201 mutually deviates from Corresponding central angle is θ between portion₂。

It is understood that when hole quantity be two, as shown in Fig. 2 two holes 204 are located at slot 203 along rotor Both sides circumferential endoporus 201a, it is right between the circumference of the inwalls 205 of two holes 204 along rotor core 201 both ends close to each other The central angle answered is θ₁, it is corresponding between the both ends that the circumference of the inwalls 205 of two holes 204 along rotor core 201 mutually deviates from Central angle be θ₂.When the quantity of hole is three, and three holes are distributed in the way of shown in Figure 10, positioned at a left side Circumferences of the hole 204h of the side and hole 204h nearer 204h apart from the space in the left side inwall 2005a along rotor core 201 Corresponding central angle is θ between both ends close to each other₁, positioned at left side hole 204h with apart from the space in left side, 204h is farther out Hole 204h the both ends that mutually deviate from of circumferences of the inwall 205a along rotor core 201 between corresponding central angle be θ₂。 When the quantity of hole is more than three, the rest may be inferred, and here is omitted.

In order that the size of hole is more reasonable, hole and the chi of the axially vertical cross section of stator core 201 are avoided Very little intensity that is excessive and influenceing stator core 201, or, hole and the size of the axially vertical cross section of stator core 201 Effect that is too small and influenceing hole, in the present embodiment, central angle θ can be made₁It is θ with central angle₂Meet relational expression：Wherein, P is the half of rotor number of poles.

In the present embodiment, hole can have a variety of along the axially vertical shape of cross section with stator core 201.Such as： Fig. 2 can be used to the pore structure shown in Fig. 9.

In Fig. 2, the arched setting in cross section of two holes 204, and the camber line of bow-shaped cross-section is located at hole 204 and deviates from slot 203 side.

In Fig. 3, the two hole 204a rectangular setting in cross section, the long side of the square-section is located at hole 204a away from slotting The side of groove 203.

In Fig. 4, two hole 204b cross section is set in isosceles triangle, and the drift angle of the isoceles triangle tee section is located at hole Gap 204b deviates from the side of slot 203.

In Fig. 5, the two hole 204c trapezoidal setting in cross section, the upper bottom of the trapezoid cross section is located at hole 204c away from slotting The side of groove 203.

In Fig. 6, two hole 204d inwall includes the arc section 204d1 with the circumferentially extending along rotor core 201, with And positioned at two first paragraph 204d2s, two first paragraph 204d2s of the arc section 204d1 along the circumferential both ends of rotor core 201 with Side wall 203a of the slot 203 away from rotor inner hole 201a directions is vertical.

In Fig. 7, two hole 204e inwall includes the arc section 204e1 with the circumferentially extending along rotor core 201, with And positioned at two second segment 204e2s, two second segment 204e2s of the arc section 204e1 along the circumferential both ends of rotor core 201 from circle Segmental arc 204e1 towards rotor inner hole 201a centerline direction extend.

In Fig. 8, two hole 204f inwall is in arc-shaped structure, and circular arc inwall is along the circumferential of rotor core 201 Middle part has the raised 204f1 stretched out towards slot 203.

In Fig. 9, the two hole 204g rectangular setting in cross section, also, the square-section is located at hole 204g away from slotting The middle part of the long side of the side of groove 203 has the groove 204g1 for the direction depression for facing away from slot 203.

Certainly, the cross section of hole can also be other shapes, depending on the structure of rotor 20.

In the present embodiment, central angle θ can be made₁Angular bisector and central angle θ₂Angular bisector overlap, circle can also be made Heart angle θ₁Angular bisector and central angle θ₂Angular bisector it is misaligned.Certainly, as central angle θ₁Angular bisector and central angle θ₂ Angular bisector it is misaligned when, can further reduce the leakage field of magnetic part 202.

In the present embodiment, when the quantity of hole is two, two holes can be made to be hung down along the axial direction with stator core 201 Straight cross-sectional area is gradually reduced on the direction of rotation of rotor core 201, further to reduce the leakage field of magnetic part 202.

, as shown in Figure 10, can be by two in three hole 204h when the quantity of hole is three in the present embodiment Hole 204h is arranged on slot 203 along side circumferential rotor inner hole 201a, and another is arranged on slot 203 along rotor inner hole Opposite side circumferential 201a, further to reduce the leakage field of magnetic part 202.

By verification experimental verification, as shown in figure 11, coil group counter potential waveform of the prior art is enriched due to harmonic content And causing sine degree poor, the harmonic content of the counter potential waveform in the coil group of the utility model embodiment is less.Such as Figure 12 It is shown, the triple-frequency harmonics opposite potential amplitude accounting lower than prior art about 22.3% of the utility model embodiment, and it is opposite Potential fundamental voltage amplitude lifting accounting wall prior art lifting 7.3%.Therefore, the knot of rotor 20 in the utility model embodiment Structure can be effectively reduced using a phase coil group and triple-frequency harmonics circulation in the end to end coil group of the joint of another phase Caused heating in winding problem, the performance of lifting motor.

In one embodiment of the present utility model, as shown in figure 1, the motor stator 10 of motor includes stator core 101 And multiple coil groups, stator core 101 have multiple along its circumferentially spaced stator tooth 101b, two neighboring salient stator Tooth 101b limits stator groove gap 101a；Each coil group is wound in stator tooth 101b coils 102 including multiple, and each Coil group has the end of incoming cables being made up of the joint of identical quantity and leading-out terminal.

It is understood that because each coil group has multiple coils 102, when multiple coils in a coil group When 102 wholes are connected in series, then the coil group has two joints, now, end of incoming cables of the joint as the coil group, and separately One is used as leading-out terminal；When multiple coils 102 in a coil group are not connected in series all, then piece-ups of the coil group Amount can be more than two, and be even number, now, the end of incoming cables for typically forming the coil group of joint total amount, second half composition outlet End.

With continued reference to Fig. 1, the motor stator 10 also includes two motor down-lead groups 103, and each motor down-lead group 103 has The more motor down-lead 103a for being used to connect circuit for controlling motor (not shown) and the joint of coil group, wherein, each motor draws The total radicals of motor down-lead 103a in line group 103 are equal with the quantity of coil group, also, every motor down-lead 103a and a line One end of incoming cables of circle group or leading-out terminal connection.

It is understood that due to motor down-lead 103a sums and the quantity of coil group in each motor down-lead group 103 It is equal, and every motor down-lead 103a is connected with the terminals that one or more joints of a coil group are formed, so that Circuit for controlling motor can switch over according to the working condition of motor to the mode of connection of multiple coil groups in motor.Such as： Circuit for controlling motor controls the mode to be linked together between multiple coil groups in end of incoming cables according to the different operating frequency of motor Or switch over two-by-two between mode that the end of incoming cables of coil group is connected with there is end, so as to take into account motor in high and low frequency Under work efficiency.

In order to which quickly and easily the motor down-lead 103a in each motor down-lead group 103 is connected with circuit for controlling motor, In the present embodiment, motor stator 10 can also include multiple plug connectors 104, and more motors in each motor down-lead group 103 draw Line 103a passes through at least one plug connector 104 and circuit for controlling motor grafting.

In the present embodiment, as shown in figure 1, the quantity that can allow plug connector 104 is two, each motor down-lead group More motor down-lead 103a in 103 are drawn by a plug connector 104 and circuit for controlling motor grafting so as to improve two motors The efficiency that line group 103 is connected with circuit for controlling motor.

In the present embodiment, each coil group has 2n joint, and wherein n is positive integer, and 2n joint can be divided into n inlet wire Joint 102a and n outlet joint 102b, the end of incoming cables of the n corresponding coil group of lead-in line joint 102a compositions, the n outlet connect The leading-out terminal of the corresponding coil group of head 102b compositions, one with being connected n lead-in line joint 102a of one in two plug connectors 104 Motor down-lead 103a connections, another motor down-lead 103a connection with being connected n outlet joint 102b, so that coil The connection of the joint and circuit for controlling motor of group is more convenient.

In the present embodiment, the coil group quantity in motor depending on the model of motor, such as：The number of coil group can be made Measure as 3, and each coil group has an a lead-in line joint 102a and outlet joint 102b, to simplify the knot of coil group Structure, improve control effect of the circuit for controlling motor to motor.

Certainly, the quantity of plug connector 104 can be more than or equal to two, and total less than or equal to motor down-lead 103a Number, here is omitted.

In the present embodiment, when the specified running speed of motor is more than or equal to 6000 revs/min, or, when motor When maximum running speed is more than or equal to 9000 revs/min, using every motor down-lead 103a in two motor down-lead groups 103 The mode being connected with a joint of a coil group is higher to the improved efficiency of motor.

In the present embodiment, as shown in figure 13, compressor include shell 30, bent axle 40, cylinder 50, piston 60, base bearing 70, Supplementary bearing 80 and motor as described above.

Wherein, shell 30 is cylindrical in shape setting, and it has along its axially extending accommodating chamber 31, bent axle 40 and is located at accommodating chamber In 31 and along the axial arranged of shell 30, the lower end of bent axle 40 passes through cylinder 50, also, bent axle 40 stretches into the part shape of cylinder 50 Piston 60 is set with into eccentric part and thereon, base bearing 70 and supplementary bearing 80 are set in song from the top and bottom of bent axle 40 respectively On axle 40, and it is fixedly connected with the upper and lower ends of cylinder 50 and is sealed with the compression chamber 51 to cylinder 50, motor is arranged on outer In the accommodating chamber 31 of shell 30, also, the rotor core 201 of motor is connected with the upper end of bent axle 40.

In the present embodiment, the control circuit that motor is arranged on the inwall of the accommodating chamber 31 of compressor can be connected Binding post, binding post grafting corresponding with the plug connector of motor, so as to which motor down-lead 103a and circuit for controlling motor is electric Connection.

In the present embodiment, binding post can be multiple binding post structures for being connected with plug connector, the quantity of the binding post Depending on the joint quantity of multiple coil groups of motor.Because the winding quantity of motor is typically without departing from three, often Individual coil group has an end of incoming cables and a leading-out terminal, therefore, can set at least six binding posts on the compressor, so that Compressor can be adapted to the motor of more polytypic.

It should be noted that the utility model is to deviate from rotor inner hole based on multiple slots 203 in rotor core 201 The side in 201a directions is set along the axially extending of rotor inner hole 201a and along rotor inner hole 201a two circumferentially distributed holes 204, and two holes 204 is connected towards the side of slot 203 with slot 203, so as to realize that reduction is inserted in multiple slots The leakage field of magnetic part 202 in 203, and then reduce triple-frequency harmonics back-emf, reduce the purpose of the caloric value of winding.It is basic herein On, the shape of two holes 204 is not limited to above-described embodiment, and in order to further reduce the magnetic part 202 in multiple slots 203 Leakage field, other structures similar to hole 204 can be increased, it is of course also possible to which the structure based on both bores gap 204 slightly becomes Shape, the utility model are not restricted.

It is understood that due to the utility model proposes compressor and motor include all of above-mentioned rotor 20 All schemes of embodiment, therefore, at least have with the identical technique effect of rotor 20, do not illustrate one by one herein.

Preferred embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, Every equivalent structure under utility model of the present utility model design, made using the utility model specification and accompanying drawing content Conversion, or directly/be used in other related technical areas indirectly and be included in scope of patent protection of the present utility model.

Claims

1. a kind of rotor, it is characterised in that the rotor includes：

The rotor core is provided with along the rotor inner hole in each slot away from the side in the rotor inner hole direction At least two axially extending holes, multiple distribution of pores in the slot along the circumferential both sides of the rotor inner hole, Also, multiple holes connect towards the side of the slot with the slot.

2. rotor as claimed in claim 1, it is characterised in that positioned at circumferential two of the slot along the rotor inner hole Side, and it is corresponding between circumference of the inwall of the two nearest holes along rotor core both ends close to each other apart Central angle is θ₁；Positioned at circumferential both sides of the slot along the rotor inner hole, and two holes of lie farthest away is interior Corresponding central angle is θ between the both ends that circumference of the wall along the rotor core mutually deviates from₂, Wherein, P is the half of the rotor number of poles.

3. rotor as claimed in claim 2, it is characterised in that the cross section of the hole is arched, isosceles triangle, Rectangle or isosceles trapezoid are set.

4. rotor as claimed in claim 2, it is characterised in that the inwall of the hole is included along the rotor core The arc section of circumferentially extending, and positioned at two first paragraphs of the arc section along the circumferential both ends of the rotor core, described in two First paragraph is vertical with side wall of the slot away from the rotor inner hole direction；

Or two the first paragraph prolong along the radial direction of the rotor inner hole from the arc section towards the rotor inner hole direction Stretch.

5. rotor as claimed in claim 2, it is characterised in that the central angle θ₁Angular bisector and the central angle θ₂Angular bisector it is misaligned.

6. the rotor as described in any one of claim 1 to 5, it is characterised in that multiple holes are along the rotor The axial both ends for axially penetrating through the rotor core of endoporus.

7. the rotor as described in any one of claim 1 to 5, it is characterised in that the quantity of the hole is two, and two The cross-sectional area of the individual hole is gradually reduced in the direction of rotation row of rotor core.

8. the rotor as described in any one of claim 1 to 5, it is characterised in that the quantity of the hole is three, and three Two in the individual hole are arranged on the slot along the circumferential side of the rotor inner hole, and another is arranged on the slot The opposite side circumferential along the rotor inner hole.

9. a kind of motor, it is characterised in that including the rotor described in motor stator and any one of claim 1 to 8.

10. motor as claimed in claim 9, it is characterised in that the motor stator includes：

Stator core, the stator core have multiple along its circumferentially spaced stator tooth, the two neighboring stator Double wedge limits stator groove gap；

Multiple coil groups, each coil group include multiple coils being wound in the stator tooth, each coil Group is with the end of incoming cables and leading-out terminal being made up of the joint of identical quantity；

Two motor down-lead groups, each motor down-lead group have more joint and the motor controls for being used to connect the coil group The motor down-lead of circuit processed, each the total radical of motor down-lead in the motor down-lead group is equal with the quantity of the coil group, The every motor down-lead is connected with an end of incoming cables of coil group or a leading-out terminal.

11. motor as claimed in claim 10, it is characterised in that the motor stator also includes multiple plug connectors, Mei Ge electricity The more motor down-leads in machine lead wire set pass through at least one plug connector and circuit for controlling motor grafting.

12. motor as claimed in claim 11, it is characterised in that the quantity of the plug connector is two, each motor down-lead The more motor down-leads in group pass through a plug connector and circuit for controlling motor grafting.

13. a kind of compressor, it is characterised in that including the motor described in any one of claim 9 to 12, set on the compressor It is equipped with least six binding posts for being used to be connected with the motor down-lead.